it's getting ready to snow soon... think i can get away without snows?

if not, what wheels/tires would you recommend??

You have the 19" 403s which come with summer tires so you will absolutely need to get a winter set. I am in the same situation and will be ordering from tirerack very soon. Believe me you do not want to drive even in even a dusting of snow with those stock tires. I made the mistake of driving my G35 with summer tires in a half of inch of snow and it might has well been a sheet of ice. Scary!